131645968 has 20 divisors (see below), whose sum is σ = 258139728. Its totient is φ = 65029280.

The previous prime is 131645953. The next prime is 131645981. The reversal of 131645968 is 869546131.

131645968 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48238 + ... + 50893.

Almost surely, 2^131645968 is an apocalyptic number.

It is an amenable number.

131645968 is a deficient number, since it is larger than the sum of its proper divisors (126493760).

131645968 is an equidigital number, since it uses as much as digits as its factorization.

131645968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99222 (or 99216 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 131645968 is about 11473.7076832208. The cubic root of 131645968 is about 508.7087261942.

The spelling of 131645968 in words is "one hundred thirty-one million, six hundred forty-five thousand, nine hundred sixty-eight".